Non-repeating Element Intrusion Detection Circuit
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Solution Overview
Problem
Conventional intrusion detection systems in information handling systems require active power, such as a CMOS battery, to detect breaches in secure boundaries, which can lead to undetected intrusions when the battery is discharged.
Innovation Solution
The implementation of a non-repeating element, such as an electro-mechanical switch with a variable resistive element, that produces non-repeatable values for a characteristic, allowing for intrusion detection without active power by recording and comparing previous and new values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional intrusion detection system using a CMOS battery is used, then intrusion detection can be performed, but the system requires active power which can be discharged leading to undetected intrusions
Solution Approach 1:
The patent removes the CMOS battery component from the intrusion detection system. By extracting the active power source requirement, the system achieves intrusion detection capability without relying on a battery that can discharge, thereby eliminating the reliability issue associated with battery failure while maintaining detection functionality through passive mechanical sensing.
2Reliability
If a CMOS battery is used for intrusion detection, then detection capability is maintained, but maintenance complexity increases due to battery replacement requirements
Solution Approach 1:
The patent extracts and eliminates the battery component entirely from the system architecture. This removal of the power-dependent component completely resolves the maintenance issue of battery replacement, while the passive mechanical sensing mechanism maintains intrusion detection capability without requiring any consumable parts or power sources.
3Reliability
If a conventional conductive connection monitoring system is used, then intrusion detection works when powered, but the system cannot detect intrusions when power is lost
Solution Approach 1:
The patent replaces the electronic/conductive monitoring system with a purely mechanical sensing mechanism. The physical displacement sensor detects intrusions through mechanical movement or position changes, eliminating dependency on electrical power for detection. This mechanical substitution ensures continuous detection capability regardless of power status.
Solution Approach 2:
The mechanical sensing system is designed to be self-actuating through physical intrusion itself. When an intrusion occurs, the mechanical displacement or position change directly triggers the detection mechanism without requiring external power activation, enabling the system to detect and record intrusions autonomously even when unpowered.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances the security of information handling systems by reducing the likelihood of manipulation and allowing intrusion detection to function even when there is no active power, thereby reducing maintenance costs and improving detection capabilities.
Implementation Method 1
a non-repeating element may be an electro-mechanical switch that may include a variable resistive element, a rotating wiper, a plunger, and/or a spring. The plunger may rotate the rotating wiper to a new location on the resistive element resulting in a new value for the resistance characteristic.
Data Source
AI summary
An intrusion detection circuit may use an element that produces non-repeatable values of a characteristic of the non-repeating element in order to prevent system manipulation. An information handling system may determine a first value for a first characteristic of the non-repeating element coupled to a secure boundary of the information handling system to activate the non-repeating element when the secure boundary is breached; retrieve a second value for the first characteristic of the non-repeating element, where the second value is a previous value compared to the first value; and determine whether an intrusion event occurred by comparing the first value of the first characteristic of the non-repeating element with the second value of the first characteristic of the non-repeating element.